Is it normal to be hungry all of the time one week post Orbera placement?

I am a 45 year old white female and I had my Orbera procedure on 2-28-17. I am 5'5" and weighed 221 pre-placement. The first 2 days I were ok, experiencing some nausea, but no vomiting. I took my meds as prescribed and stuck to the liquid diet. By day 3 I started feeling hungry constantly and added protein shakes. I constantly stay hungry and even after eating/drinking I don't have a full feeling and don't feel satisfied. Am I doing something wrong? I track everything I put in my mouth.